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 There are 7 twelve-letter words containing H, I, L, S, U and X| EXHAUSTINGLY | • exhaustingly adv. In an exhausting manner. • EXHAUSTINGLY adv. in the manner of using the whole strength of.
 |  | EXHAUSTIVELY | • exhaustively adv. In an exhaustive manner. • EXHAUSTIVE adv. testing all possibilities or considering all elements.
 |  | OXYSULPHIDES | • oxysulphides n. Plural of oxysulphide. • OXYSULPHIDE n. a compound containing an element combined with oxygen and sulphur.
 |  | PYRRHULOXIAS | • pyrrhuloxias n. Plural of pyrrhuloxia. • PYRRHULOXIA n. a grey-and-pink crested bunting of Central and SW North America, with a short parrot-like bill.
 |  | SULPHADOXINE | • sulphadoxine n. Alternative spelling of sulfadoxine. • SULPHADOXINE n. an antibiotic drug of the sulphonamide group, commonly used in combination with pyrimethamine to treat malaria, also SULFADOXINE.
 |  | SUPERHELIXES | • superhelixes n. Plural of superhelix. • SUPERHELIX n. a helix, as of DNA, which has its axis arranged in a helical coil.
 |  | UNNILHEXIUMS | • UNNILHEXIUM n. a chemical element, aka seaborgium. | 
 Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.Definitions are short excerpt from the 1Word.ws and WikWik.org.
 
 See this list for:English Wiktionary: 16 wordsScrabble in French: no wordScrabble in Spanish: no wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: 8 words
 
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